+++ /dev/null
-Submitted By: DJ Lucas (dj at linuxfromscratch dot org)
-Date: 2005-06-18
-Initial Package Version: 3.0.2
-Origin: Jim Gifford, Bruce Dubbs, DJ Lucas
-Description: Fixes client script to use iproute2 (added flush to previous
- unversioned patches)
-Upstream Status: Not submitted
-
---- dhcp-3.0.2-orig/client/scripts/linux 2002-11-14 19:09:09.000000000 -0600
-+++ dhcp-3.0.2/client/scripts/linux 2005-06-18 22:54:59.000000000 -0500
-@@ -1,26 +1,15 @@
- #!/bin/bash
- # dhclient-script for Linux. Dan Halbert, March, 1997.
- # Updated for Linux 2.[12] by Brian J. Murrell, January 1999.
--# No guarantees about this. I'm a novice at the details of Linux
--# networking.
-+
-+# Updated to iproute2 by Jim Gifford (scripts@jg555.com)
-
- # Notes:
-
- # 0. This script is based on the netbsd script supplied with dhcp-970306.
--
--# 1. ifconfig down apparently deletes all relevant routes and flushes
--# the arp cache, so this doesn't need to be done explicitly.
--
--# 2. The alias address handling here has not been tested AT ALL.
--# I'm just going by the doc of modern Linux ip aliasing, which uses
--# notations like eth0:0, eth0:1, for each alias.
--
--# 3. I have to calculate the network address, and calculate the broadcast
--# address if it is not supplied. This might be much more easily done
--# by the dhclient C code, and passed on.
--
--# 4. TIMEOUT not tested. ping has a flag I don't know, and I'm suspicious
--# of the $1 in its args.
-+# 1. This script was modified to work with iproute2
-+# 2. cidr_convert based on a script by Kevin Fleming (kpfleming@linuxfromscratch.org)
-+# 3. Updated to delete addresses when taking an interface down (bdubbs@linuxfromscratch.org)
-
- make_resolv_conf() {
- if [ "x$new_domain_name" != x ] && [ x"$new_domain_name_servers" != x ]; then
-@@ -32,6 +21,30 @@
- fi
- }
-
-+dec2binary()
-+{
-+ local n=$1
-+ local ret=""
-+ while [ $n != 0 ]; do
-+ ret=$[$n%2]$ret
-+ n=$[$n>>1]
-+ done
-+ echo $ret
-+}
-+
-+mask_to_binary()
-+{
-+ echo `dec2binary $1``dec2binary $2``dec2binary $3``dec2binary $4`
-+}
-+
-+cidr_convert()
-+{
-+ netmask=$1
-+ local mask=`mask_to_binary ${netmask//./ }`
-+ mask=${mask%%0*}
-+ cidr=${#mask}
-+}
-+
- # Must be used on exit. Invokes the local dhcp client exit hooks, if any.
- exit_with_hooks() {
- exit_status=$1
-@@ -53,11 +66,6 @@
- fi
- fi
-
--release=`uname -r`
--release=`expr $release : '\(.*\)\..*'`
--relminor=`echo $release |sed -e 's/[0-9]*\.\([0-9][0-9]*\)\(\..*\)*$/\1/'`
--relmajor=`echo $release |sed -e 's/\([0-9][0-9]*\)\..*$/\1/'`
--
- if [ x$new_broadcast_address != x ]; then
- new_broadcast_arg="broadcast $new_broadcast_address"
- fi
-@@ -65,13 +73,12 @@
- old_broadcast_arg="broadcast $old_broadcast_address"
- fi
- if [ x$new_subnet_mask != x ]; then
-- new_subnet_arg="netmask $new_subnet_mask"
-+ cidr_convert $new_subnet_mask
-+ new_subnet_arg="$cidr"
- fi
- if [ x$old_subnet_mask != x ]; then
-- old_subnet_arg="netmask $old_subnet_mask"
--fi
--if [ x$alias_subnet_mask != x ]; then
-- alias_subnet_arg="netmask $alias_subnet_mask"
-+ cidr_convert $old_subnet_mask
-+ old_subnet_arg="$cidr"
- fi
-
- if [ x$reason = xMEDIUM ]; then
-@@ -82,17 +89,10 @@
- if [ x$reason = xPREINIT ]; then
- if [ x$alias_ip_address != x ]; then
- # Bring down alias interface. Its routes will disappear too.
-- ifconfig $interface:0- inet 0
-- fi
-- if [ $relmajor -lt 2 ] || ( [ $relmajor -eq 2 ] && [ $relminor -eq 0 ] )
-- then
-- ifconfig $interface inet 0.0.0.0 netmask 0.0.0.0 \
-- broadcast 255.255.255.255 up
-- # Add route to make broadcast work. Do not omit netmask.
-- route add default dev $interface netmask 0.0.0.0
-- else
-- ifconfig $interface 0 up
-+ ip link set $interface down
-+ ip addr del $alias_ip_address dev $interface
- fi
-+ ip link set $interface up
-
- # We need to give the kernel some time to get the interface up.
- sleep 1
-@@ -115,83 +115,51 @@
- fi
- fi
-
-- if [ x$old_ip_address != x ] && [ x$alias_ip_address != x ] && \
-- [ x$alias_ip_address != x$old_ip_address ]; then
-- # Possible new alias. Remove old alias.
-- ifconfig $interface:0- inet 0
-- fi
- if [ x$old_ip_address != x ] && [ x$old_ip_address != x$new_ip_address ]; then
-- # IP address changed. Bringing down the interface will delete all routes,
-+ # IP address changed. Bring down the interface, delete all routes,
- # and clear the ARP cache.
-- ifconfig $interface inet 0 down
--
-+ ip link set $interface down
-+ ip addr flush dev $interface
- fi
- if [ x$old_ip_address = x ] || [ x$old_ip_address != x$new_ip_address ] || \
- [ x$reason = xBOUND ] || [ x$reason = xREBOOT ]; then
-
-- ifconfig $interface inet $new_ip_address $new_subnet_arg \
-- $new_broadcast_arg
-+ ip link set $interface up
-+ ip addr add $new_ip_address/$new_subnet_arg $new_broadcast_arg \
-+ label $interface dev $interface
- # Add a network route to the computed network address.
-- if [ $relmajor -lt 2 ] || \
-- ( [ $relmajor -eq 2 ] && [ $relminor -eq 0 ] ); then
-- route add -net $new_network_number $new_subnet_arg dev $interface
-- fi
- for router in $new_routers; do
-- route add default gw $router
-+ ip route add default via $router
- done
- fi
-- if [ x$new_ip_address != x$alias_ip_address ] && [ x$alias_ip_address != x ];
-- then
-- ifconfig $interface:0- inet 0
-- ifconfig $interface:0 inet $alias_ip_address $alias_subnet_arg
-- route add -host $alias_ip_address $interface:0
-- fi
- make_resolv_conf
- exit_with_hooks 0
- fi
-
- if [ x$reason = xEXPIRE ] || [ x$reason = xFAIL ] || [ x$reason = xRELEASE ] \
- || [ x$reason = xSTOP ]; then
-- if [ x$alias_ip_address != x ]; then
-- # Turn off alias interface.
-- ifconfig $interface:0- inet 0
-- fi
- if [ x$old_ip_address != x ]; then
-- # Shut down interface, which will delete routes and clear arp cache.
-- ifconfig $interface inet 0 down
-- fi
-- if [ x$alias_ip_address != x ]; then
-- ifconfig $interface:0 inet $alias_ip_address $alias_subnet_arg
-- route add -host $alias_ip_address $interface:0
-+ # Shut down interface, delete routes, and clear arp cache.
-+ ip link set $interface down
-+ ip addr flush dev $interface
- fi
- exit_with_hooks 0
- fi
-
- if [ x$reason = xTIMEOUT ]; then
-- if [ x$alias_ip_address != x ]; then
-- ifconfig $interface:0- inet 0
-- fi
-- ifconfig $interface inet $new_ip_address $new_subnet_arg \
-- $new_broadcast_arg
-+ ip link set $interface up
-+ ip addr set $new_ip_address/$new_subnet_arg $new_broadcast_arg \
-+ label $interface dev $interface
- set $new_routers
-- ############## what is -w in ping?
-- if ping -q -c 1 $1; then
-- if [ x$new_ip_address != x$alias_ip_address ] && \
-- [ x$alias_ip_address != x ]; then
-- ifconfig $interface:0 inet $alias_ip_address $alias_subnet_arg
-- route add -host $alias_ip_address dev $interface:0
-- fi
-- if [ $relmajor -lt 2 ] || \
-- ( [ $relmajor -eq 2 ] && [ $relminor -eq 0 ] ); then
-- route add -net $new_network_number
-- fi
-- for router in $new_routers; do
-- route add default gw $router
-- done
-- make_resolv_conf
-- exit_with_hooks 0
-- fi
-- ifconfig $interface inet 0 down
-+
-+ for router in $new_routers; do
-+ ip route add default via $router
-+ done
-+
-+ make_resolv_conf
-+ exit_with_hooks 0
-+ ip link set $interface down
-+ ip addr flush dev $interface
- exit_with_hooks 1
- fi
-
projects / ipfire-2.x.git / commitdiff
